Finding the Fourth Proportional to 139,412.79, 192,390.83 and 75,750.59

Step by Step Solution

1. Step 1: Write the proportion equation
   139,412.79 : 192,390.83 = 75,750.59 : x
2. Step 2: Convert to fraction form
   139,412.79/192,390.83 = 75,750.59/x
3. Step 3: Cross multiply
   139,412.79x = 192,390.83 × 75,750.59
4. Step 4: Simplify right side
   139,412.79x = 14,573,719,028.89
5. Step 5: Solve for x
   x = 14,573,719,028.89/139,412.79
6. Step 6: Final answer
   x = 104,536.45